diff --git a/apps/wpm/views.py b/apps/wpm/views.py
index b6de1812..62aa98f4 100644
--- a/apps/wpm/views.py
+++ b/apps/wpm/views.py
@@ -192,6 +192,7 @@ class MlogViewSet(CustomModelViewSet):
         # delete_auditlog(instance, instance.id)
         if instance.ticket:
             instance.ticket.delete()
+        Ftest.objects.filter(mlogbw_ftest__mlogb__mlog=instance).delete()
         instance.delete()
 
     @transaction.atomic
@@ -499,12 +500,8 @@ class MlogbInViewSet(CreateModelMixin, UpdateModelMixin, DestroyModelMixin, Cust
                 query_dict["batch__contains"] = ins.batch
             qs = Mlogb.objects.filter(**query_dict) | qs
             # 需要删除子集ftest记录
-            mlogbw_qs = Mlogbw.objects.filter(mlogb__in=qs)
-            # 需用list 不然qs.delete 这个qs会变空
-            ftestIds = list(mlogbw_qs.values_list("ftest__id", flat=True))
+            Ftest.objects.filter(mlogbw_ftest__mlogb__in=qs).delete()
             qs.delete()
-            Ftest.objects.filter(id__in=ftestIds).delete()
-
         instance.delete()
 
     @transaction.atomic